1. From the Department of Neurology, Klinikum Frankfurt Höchst, Germany (T.S.); Department of Neurology, Heidelberg University Hospital, Germany (T.S., R.V.); Thrombosis and Atherosclerosis Research Institute and the Departments of Medicine and Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada (J.I.W.); and Department of Stroke, Medicine, Imperial College, London, United Kingdom (R.V.).